Last Updated: 15 Oct 2021 12:22 by Joe


I think there is an issue with the domain - "". Becuase of this, justdecompile cannot install new plugns. 

The error I am getting is:

Cannot connect to JustDecompile server.
Please, check your internet connection.
Could not establish secure channel for SSL/TLS with authority ''.

No proxy server, straight up vanilla internet connection. I can successfully ping

Last Updated: 17 Sep 2021 05:45 by ADMIN
Last Updated: 25 Aug 2021 14:30 by Valid Development Factory
Created by: Rakesh
Comments: 6
Type: Bug Report


I think there is an issue with the domain - "". Becuase of this, justdecompile cannot install new plugns. 

Certificate name mismatch

Please check the link below for the issue reported.




Last Updated: 12 Aug 2021 11:39 by ADMIN

Dear Just Decompile Team

I would like to propose to add a new search result filter.

At the current state I can go to "search" and search for a text. After that I can add filters to the search results like
Result type
Container Type

But I cannot search for text within the results. So it would be very useful to add a filter to search for text again.

For example:
First search for "window" gives following results:
- window
- window30
- openwindow
- windowclosed
- mainwindow
- windownotopen

Add text filter:
Text contains 'open'

new filtered result list:
- openwindow
- windownotopen

This would be very helpful searching large amounts of text

Kind Regards
Hans M.

Last Updated: 27 Jul 2021 08:35 by ADMIN

I would like to propose that the licensing for the JustDecompiler changes in preference to OpenSource type, allowing to download and use it free of charge, without limit of time or functionality.

Additionally, a good idea would be also that the sources of it become freely avaliable, that the user can self compile the code themself for any operatig system and platform they use.

Opening the sources has also an additional adventage, that the "community" helps to develop the program and thru that the application get faster new features and it's bugs fixed, without the need to put any additional work on the dev team and allow them to focus on the important things

Last Updated: 27 Jul 2021 08:31 by ADMIN

Please create a version of the program for the operating systems other then Windows.


There is a very hard to find similiar software to JustDecompile, with would be avaliable for such systems, like for example Linux

Last Updated: 08 Jun 2021 09:22 by ADMIN

How does one update de4dot to latest available version (2020-06-08)? The plugins manager does not list any update. The current installed version is 2017.2.630.0, whereas the latest available version from github is dated 2020-06-08.


Last Updated: 10 May 2021 06:20 by ADMIN
Created by: KIM
Comments: 0
Type: Feature Request


I am new user from Cambodia, i just try using your software JustDecompile which is wonderful software compare with another program which I tested. I am writing email to you request new feature plug in to display the form in GUI display as we being using the real interface of program (Ex.VB Decompiler Lite) , user can try test or click to know where the code in and process of each step of code inside the form. I hope you might understand with my suggestion 

Under Review
Last Updated: 27 Apr 2021 13:37 by ADMIN


.set_xxxx(qqqq = wwww )

.set_xxxx(new unit(qqqq = wwww) )

.set_xxxx(new unit(qqqq , wwww) )

giving errorCS0571 cannot explicitly call operator or accessor



gridViewCommandColumn.set_ButtonType(3); gridViewCommandColumn.set_Width(new Unit(140, UnitType.Pixel));

aSPxTextBox.get_ValidationSettings().set_ValidationGroup(Convert.ToString(bindingContainer.get_ValidationGroup(), CultureInfo.CurrentCulture));

Last Updated: 08 Feb 2021 06:57 by ADMIN


I use Visual Studio 2019 with Xamarin to develop a cross-platform (Android and iOS) app. I use an obfuscator on the build code for releases.

When archiving the app for release I like to confirm the success of the obfuscation by unzipping the resultant APK, finding the app's main DLL, and dropping this into JustDecompile where I can view the obfuscated code and confirm it's all fine - which has worked well as a process up to now.

However the Google Play Store is removing support for APK files this year, so I have migrated to building AAB files - their new accepted standard. The problem is my previous method of decompiling one of these is no longer valid; after unzipping the AAB and locating the app's main DLL it is no longer in the correct format to be open-able by JustDecompile, with the following error message:

JustDecompile supports only valid CLR assemblies.

From the following GitHub discussion ( I have discovered that this due to Microsoft altering their file formats for CLR assemblies - they've now added a few additional bits of pre-header - so whilst these are still valid CLRs for Android release purposes, it is not considered a valid CLR within JustDecompile.


Will JustDecompile be supporting decompilation of Microsoft's new DLL format, used within AAB files, in future?

Last Updated: 02 Feb 2021 13:40 by ADMIN

Would be great if we can set a configuration option for search paths to locate referenced assemblies.

From the "Open" command I should be able to "load from folder" and select my project output folder - all the assemblies from that folder should get loaded.

I can set my local nuGet cache path as a search root:  C:\Users\[username]\.nuget\packages

JD can understand the nuGet folder hierarchy and locate files that are the right name/version or prompt to disambiguate when more than one is found.

You can have an MRU list for "Recent folders" to allow switching between projects.

The Assembly List feature never really worked right for me; and loading files by hand, one at a time, sometimes over dozens of dependencies, is a huge pain - would be very easy to do programatically. Even better to actually download missing libraries from nuGet or MS Symbol Cache.


Pending Review
Last Updated: 01 Oct 2020 17:23 by Houzin

Can not load WinRT Metadata, the option is grayed out even though I am running Windows 10 and the C:\Windows\System32\WinMetadata folder does exist.


I also tried open the above folder but JustDecompile says it can not fild the folder! I did start JustDecompile as the admin, no luck.  

Please assist. Thanks. 

Last Updated: 04 Aug 2020 06:23 by ADMIN

Just installed and can't see anything but white screen/faint icons on my laptop.  Can't see anything well enough to even look for settings...


Last Updated: 04 Aug 2020 06:18 by ADMIN

The attached project causes a decompilation error in the DrawPixels() method:


Current member / type: System.Void ConwaysLife.LifeForm::DrawPixels()

Product version: 2019.1.118.0
Exception in: System.Void DrawPixels()

Value does not fall within the expected range.
at ??.??.??(ICodeNode ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Ast\BaseCodeTransformer.cs:line 237
at ??.??.Visit(ICodeNode ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Ast\BaseCodeTransformer.cs:line 276
at ??.??.Visit[??,??](?? ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Ast\BaseCodeTransformer.cs:line 286
at ??.??.Visit(? ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Ast\BaseCodeTransformer.cs:line 317
at ??.??.?(?? ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Ast\BaseCodeTransformer.cs:line 337
at ?.?.?.Match(?? ?, Int32 ?) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Steps\RebuildAnonymousDelegatesStep.cs:line 119
at ?.?.?(?? ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Steps\RebuildAnonymousDelegatesStep.cs:line 28
at ?.?.?(DecompilationContext ?, ?? ??) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Steps\RebuildAnonymousDelegatesStep.cs:line 21
at ??.??.(MethodBody ??, ?? ?, ILanguage ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\DecompilationPipeline.cs:line 88
at ??.??.?(MethodBody ??, ILanguage ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\DecompilationPipeline.cs:line 70
at Telerik.JustDecompiler.Decompiler.Extensions.??(?? ??, ILanguage , MethodBody ??, DecompilationContext& ?) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\Extensions.cs:line 95
at Telerik.JustDecompiler.Decompiler.Extensions.??(MethodBody ??, ILanguage , DecompilationContext& ?,  ??) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\Extensions.cs:line 58
at ??.??.?(ILanguage , MethodDefinition ?,  ??) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\WriterContextServices\BaseWriterContextService


The code from from here

but since the code is frequently changed I've attached a zip file.

Last Updated: 07 Jul 2020 08:19 by Mark

Whenever using JustDecompile or JustAssembly to decompile or compare an exe with methods that use the "On Error" error handling syntax/style, those methods fail to decompile and instead display an error that has been reported several times.

I have tried to follow the source code to determine where the issue is, but I have had no luck doing so.
It is a rather large and intricate project after all. 🙂

Please add support for decompiling this syntax.

Thank you.

Last Updated: 25 Jun 2020 06:51 by ADMIN
Created by: Yonghan
Comments: 3
Type: Bug Report

Code Viewer Font setting is reset every time.

Always Courier New,13 even changing Consolas.

Last Updated: 15 May 2020 07:02 by ADMIN
Created by: Michael
Comments: 2
Type: Bug Report

I've noticed that the program when exporting a project gives me cameraInfo.get_VerticalExtent()  instead of cameraInfo.VerticalExtent 

It seems to be making a method instead of a property of an object.

Last Updated: 23 Apr 2020 06:31 by ADMIN

Decompiling the following code in either DEBUG or RELEASE build gives the exception below:


        public IEnumerable<int> YieldTest(IEnumerable<int> sequenceA, List<int> sequenceB)
            foreach (var i in sequenceA)
                foreach (var j in sequenceB)
                    yield return i*j;


So a foreach nested inside another foreach...


Current member / type: System.Collections.Generic.IEnumerable`1<System.Int32> Tests.TestClass::YieldTest(System.Collections.Generic.IEnumerable`1<System.Int32>,System.Collections.Generic.List`1<System.Int32>)
File path: C:\Projects\Sandbox\Decompile Test\Tests\Tests\bin\Release\Tests.dll

Product version: 2019.1.118.0
Exception in: System.Collections.Generic.IEnumerable<System.Int32> YieldTest(System.Collections.Generic.IEnumerable<System.Int32>,System.Collections.Generic.List<System.Int32>)

Invalid state value
at €—..(‚ ž, Queue`1 , ILogicalConstruct ”) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\LogicFlow\YieldGuardedBlocksBuilder.cs:line 203
at €—..Ÿ(‚ ž) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\LogicFlow\YieldGuardedBlocksBuilder.cs:line 187
at €—..(‚ ž) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\LogicFlow\YieldGuardedBlocksBuilder.cs:line 129
at €—..š(„ ‚) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\LogicFlow\YieldGuardedBlocksBuilder.cs:line 76
at €—..() in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\LogicFlow\LogicalFlowBuilderStep.cs:line 126
at €—..œ(DecompilationContext ™, •Ÿ €–) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\LogicFlow\LogicalFlowBuilderStep.cs:line 51
at ‚–.™“.(MethodBody €–, •Ÿ Ÿ, ILanguage ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\DecompilationPipeline.cs:line 88
at ‚–.™“.‹(MethodBody €–, ILanguage ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\DecompilationPipeline.cs:line 70
at Telerik.JustDecompiler.Decompiler.Extensions.“(MethodBody €–, DecompilationContext †, Œ Ÿ“, Func`2 ”, DecompilationContext& ”“) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\Extensions.cs:line 104
at Telerik.JustDecompiler.Decompiler.Extensions.”(MethodBody €–, DecompilationContext †, ž& ž) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\Extensions.cs:line 139
at ž..–() in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Steps\RebuildYieldStatementsStep.cs:line 134
at ž..Match(‰ œ—) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Steps\RebuildYieldStatementsStep.cs:line 49
at ž..œ(DecompilationContext ™, •Ÿ €–) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Steps\RebuildYieldStatementsStep.cs:line 20
at ‚–.™“.(MethodBody €–, •Ÿ Ÿ, ILanguage ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\DecompilationPipeline.cs:line 88
at ‚–.™“.‹(MethodBody €–, ILanguage ) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\DecompilationPipeline.cs:line 70
at Telerik.JustDecompiler.Decompiler.Extensions.›“(™“ œ“, ILanguage , MethodBody €–, DecompilationContext& ™) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\Extensions.cs:line 95
at Telerik.JustDecompiler.Decompiler.Extensions.š“(MethodBody €–, ILanguage , DecompilationContext& ™,  œ–) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\Extensions.cs:line 58
at ——.ƒ˜.—(ILanguage , MethodDefinition €,  œ–) in C:\DeveloperTooling_JD_Agent1\_work\15\s\OpenSource\Cecil.Decompiler\Decompiler\WriterContextServices\BaseWriterContextService.


I also send an email about this when I encountered it earlier but here is an actual code example.

Last Updated: 22 Apr 2020 12:13 by ADMIN


In certain situations with a for-loop nested inside another loop, a break-statement in the inner loop will decompile to a goto that also exits the outer loop.

If this code is compiled in RELEASE mode:

        public void NestedForTest(IEnumerable<char> line)
            foreach (var ch in line)
                for (int i = 0; i < 4; i++)
                    Console.Write("-");     // If this line is removed it works
                    if (ch == 't') break;


The following code is decompiled:

        public void NestedForTest(IEnumerable<char> line)
            foreach (char ch in line)
                for (int i = 0; i < 4; i++)
                    if (ch == 't')
      goto Label0;   // THIS IS WRONG!


- It is only a problem when the code is compiled in a RELEASE configuration (in DEBUG it interpret it as a while-loop and the code is correct)

- If the line before the exit-check is removed (see comment in code) it decompiles correctly.


Last Updated: 22 Apr 2020 08:21 by ADMIN
When reviewing code, it would be helpful to filter and/or highlight the properties/methods that are related to a particular interface.
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